head quarter, i'm cheryl hurd, nbc bay area news. >>> new at 6:00 tonight a state senator is asking governor jerry brown to shake up the lordship at the state's public utilities commission. the call comes less than 24 hours after the nbc bay area investigative unit uncovered a confidential internal document raising questions about the puc's commitment to safety. topekay kovaleski broke the story and the senator has called on the governor to hold someone accountable. >> reporter: in fact he's calling for change at the very top. this is clear ly a report the pc wanted to keep from the public. some admitting safety is not a priority at the puc, admitting working in a culture that fos r fosters cozy relationships with the utilities it regulates. >> that's outrageous and goes to the culture that the puc has, it goes to the leadership of the public utilities commission. >> reporter: state senator jerry hill reacting to the information inside this previously secret, previously confidential report. >> it shows that the culture, that the issue of safety is sdp that has not been a priority.